#!/usr/bin/env python
#Version:1.0
#Program:判断元素是否在列表中。

def is_in_list(e):
    list=[0,1,"a","e","r",2,9,6,3]
    count=0
    for n in list:
        n=str(n)
        e=str(e)
        if n==e:
            print("This element '",e,"' is in list.")
            break
        else:
            count+=1
    if count==len(list):
        print("Sorry,this element '",e,"' is not in list.")

m=input("Please input a element:")
is_in_list(m)